/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.ce.task.projectanalysis.api.measurecomputer;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import org.junit.Rule;
import org.junit.Test;
import org.sonar.api.ce.measure.Component;
import org.sonar.api.ce.measure.MeasureComputer;
import org.sonar.api.config.internal.MapSettings;
import org.sonar.api.measures.CoreMetrics;
import org.sonar.api.rule.RuleKey;
import org.sonar.api.utils.Duration;
import org.sonar.ce.task.projectanalysis.component.ConfigurationRepository;
import org.sonar.ce.task.projectanalysis.component.TreeRootHolderRule;
import org.sonar.ce.task.projectanalysis.issue.ComponentIssuesRepositoryRule;
import org.sonar.ce.task.projectanalysis.measure.Measure;
import org.sonar.ce.task.projectanalysis.measure.MeasureRepositoryRule;
import org.sonar.ce.task.projectanalysis.metric.Metric;
import org.sonar.ce.task.projectanalysis.metric.MetricImpl;
import org.sonar.ce.task.projectanalysis.metric.MetricRepositoryRule;
import org.sonar.core.issue.DefaultIssue;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.sonar.api.measures.CoreMetrics.COMMENT_LINES_KEY;
import static org.sonar.api.measures.CoreMetrics.NCLOC_KEY;
import static org.sonar.ce.task.projectanalysis.component.ReportComponent.builder;
import static org.sonar.ce.task.projectanalysis.measure.Measure.newMeasureBuilder;

public class MeasureComputerContextImplTest {


  private static final String INT_METRIC_KEY = "int_metric_key";
  private static final String DOUBLE_METRIC_KEY = "double_metric_key";
  private static final String LONG_METRIC_KEY = "long_metric_key";
  private static final String STRING_METRIC_KEY = "string_metric_key";
  private static final String BOOLEAN_METRIC_KEY = "boolean_metric_key";

  private static final int PROJECT_REF = 1;
  private static final int FILE_1_REF = 12341;
  private static final String FILE_1_KEY = "fileKey";
  private static final int FILE_2_REF = 12342;

  private static final org.sonar.ce.task.projectanalysis.component.Component FILE_1 = builder(
    org.sonar.ce.task.projectanalysis.component.Component.Type.FILE, FILE_1_REF)
    .setKey(FILE_1_KEY)
    .build();

  @Rule
  public TreeRootHolderRule treeRootHolder = new TreeRootHolderRule()
    .setRoot(builder(org.sonar.ce.task.projectanalysis.component.Component.Type.PROJECT, PROJECT_REF).setKey("project")
      .addChildren(
        FILE_1,
        builder(org.sonar.ce.task.projectanalysis.component.Component.Type.FILE, FILE_2_REF).setKey("fileKey2").build())
      .build());

  @Rule
  public MetricRepositoryRule metricRepository = new MetricRepositoryRule()
    .add("1", CoreMetrics.NCLOC)
    .add(new MetricImpl("2", INT_METRIC_KEY, "int metric", Metric.MetricType.INT))
    .add(new MetricImpl("3", DOUBLE_METRIC_KEY, "double metric", Metric.MetricType.FLOAT))
    .add(new MetricImpl("4", LONG_METRIC_KEY, "long metric", Metric.MetricType.MILLISEC))
    .add(new MetricImpl("5", STRING_METRIC_KEY, "string metric", Metric.MetricType.STRING))
    .add(new MetricImpl("6", BOOLEAN_METRIC_KEY, "boolean metric", Metric.MetricType.BOOL));

  @Rule
  public MeasureRepositoryRule measureRepository = MeasureRepositoryRule.create(treeRootHolder, metricRepository);

  @Rule
  public ComponentIssuesRepositoryRule componentIssuesRepository = new ComponentIssuesRepositoryRule(treeRootHolder);

  ConfigurationRepository settingsRepository = mock(ConfigurationRepository.class);

  @Test
  public void get_component() {
    MeasureComputerContextImpl underTest = newContext(FILE_1_REF);
    assertThat(underTest.getComponent().getType()).isEqualTo(Component.Type.FILE);
  }

  @Test
  public void get_string_settings() {
    MapSettings serverSettings = new MapSettings();
    serverSettings.setProperty("prop", "value");
    when(settingsRepository.getConfiguration()).thenReturn(serverSettings.asConfig());

    MeasureComputerContextImpl underTest = newContext(FILE_1_REF);
    assertThat(underTest.getSettings().getString("prop")).isEqualTo("value");
    assertThat(underTest.getSettings().getString("unknown")).isNull();
  }

  @Test
  public void get_string_array_settings() {
    MapSettings serverSettings = new MapSettings();
    serverSettings.setProperty("prop", "1,3.4,8,50");
    when(settingsRepository.getConfiguration()).thenReturn(serverSettings.asConfig());

    MeasureComputerContextImpl underTest = newContext(FILE_1_REF);
    assertThat(underTest.getSettings().getStringArray("prop")).containsExactly("1", "3.4", "8", "50");
    assertThat(underTest.getSettings().getStringArray("unknown")).isEmpty();
  }

  @Test
  public void get_measure() {
    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));

    MeasureComputerContextImpl underTest = newContext(FILE_1_REF, NCLOC_KEY, COMMENT_LINES_KEY);
    assertThat(underTest.getMeasure(NCLOC_KEY).getIntValue()).isEqualTo(10);
  }

  @Test
  public void fail_with_IAE_when_get_measure_is_called_on_metric_not_in_input_list() {
    assertThatThrownBy(() -> {
      MeasureComputerContextImpl underTest = newContext(PROJECT_REF, "another metric", "debt");
      underTest.getMeasure(NCLOC_KEY);
    })
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Only metrics in [another metric] can be used to load measures");
  }

  @Test
  public void get_children_measures() {
    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));
    measureRepository.addRawMeasure(FILE_2_REF, NCLOC_KEY, newMeasureBuilder().create(12));

    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, COMMENT_LINES_KEY);
    assertThat(underTest.getChildrenMeasures(NCLOC_KEY)).hasSize(2);
    assertThat(underTest.getChildrenMeasures(NCLOC_KEY)).extracting("intValue").containsOnly(10, 12);
  }

  @Test
  public void get_children_measures_when_one_child_has_no_value() {
    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));
    // No data on file 2

    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, COMMENT_LINES_KEY);
    assertThat(underTest.getChildrenMeasures(NCLOC_KEY)).extracting("intValue").containsOnly(10);
  }

  @Test
  public void not_fail_to_get_children_measures_on_output_metric() {
    measureRepository.addRawMeasure(FILE_1_REF, INT_METRIC_KEY, newMeasureBuilder().create(10));

    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, INT_METRIC_KEY);
    assertThat(underTest.getChildrenMeasures(INT_METRIC_KEY)).hasSize(1);
    assertThat(underTest.getChildrenMeasures(INT_METRIC_KEY)).extracting("intValue").containsOnly(10);
  }

  @Test
  public void fail_with_IAE_when_get_children_measures_is_called_on_metric_not_in_input_list() {
    assertThatThrownBy(() -> {
      MeasureComputerContextImpl underTest = newContext(PROJECT_REF, "another metric", "debt");
      underTest.getChildrenMeasures(NCLOC_KEY);
    })
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Only metrics in [another metric] can be used to load measures");
  }

  @Test
  public void add_int_measure_create_measure_of_type_int_with_right_value() {
    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, INT_METRIC_KEY);
    underTest.addMeasure(INT_METRIC_KEY, 10);

    Optional<Measure> measure = measureRepository.getAddedRawMeasure(PROJECT_REF, INT_METRIC_KEY);
    assertThat(measure).isPresent();
    assertThat(measure.get().getIntValue()).isEqualTo(10);
  }

  @Test
  public void add_double_measure_create_measure_of_type_double_with_right_value() {
    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, DOUBLE_METRIC_KEY);
    underTest.addMeasure(DOUBLE_METRIC_KEY, 10d);

    Optional<Measure> measure = measureRepository.getAddedRawMeasure(PROJECT_REF, DOUBLE_METRIC_KEY);
    assertThat(measure).isPresent();
    assertThat(measure.get().getDoubleValue()).isEqualTo(10d);
  }

  @Test
  public void add_long_measure_create_measure_of_type_long_with_right_value() {
    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, LONG_METRIC_KEY);
    underTest.addMeasure(LONG_METRIC_KEY, 10L);

    Optional<Measure> measure = measureRepository.getAddedRawMeasure(PROJECT_REF, LONG_METRIC_KEY);
    assertThat(measure).isPresent();
    assertThat(measure.get().getLongValue()).isEqualTo(10L);
  }

  @Test
  public void add_string_measure_create_measure_of_type_string_with_right_value() {
    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, STRING_METRIC_KEY);
    underTest.addMeasure(STRING_METRIC_KEY, "data");

    Optional<Measure> measure = measureRepository.getAddedRawMeasure(PROJECT_REF, STRING_METRIC_KEY);
    assertThat(measure).isPresent();
    assertThat(measure.get().getStringValue()).isEqualTo("data");
  }

  @Test
  public void add_boolean_measure_create_measure_of_type_boolean_with_right_value() {
    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, BOOLEAN_METRIC_KEY);
    underTest.addMeasure(BOOLEAN_METRIC_KEY, true);

    Optional<Measure> measure = measureRepository.getAddedRawMeasure(PROJECT_REF, BOOLEAN_METRIC_KEY);
    assertThat(measure).isPresent();
    assertThat(measure.get().getBooleanValue()).isTrue();
  }

  @Test
  public void fail_with_IAE_when_add_measure_is_called_on_metric_not_in_output_list() {
    assertThatThrownBy(() -> {
      MeasureComputerContextImpl underTest = newContext(PROJECT_REF, NCLOC_KEY, INT_METRIC_KEY);
      underTest.addMeasure(DOUBLE_METRIC_KEY, 10);
    })
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Only metrics in [int_metric_key] can be used to add measures. Metric 'double_metric_key' is not allowed.");
  }

  @Test
  public void fail_with_unsupported_operation_when_adding_measure_that_already_exists() {
    assertThatThrownBy(() -> {
      measureRepository.addRawMeasure(FILE_1_REF, INT_METRIC_KEY, newMeasureBuilder().create(20));
      MeasureComputerContextImpl underTest = newContext(FILE_1_REF, NCLOC_KEY, INT_METRIC_KEY);
      underTest.addMeasure(INT_METRIC_KEY, 10);
    })
      .isInstanceOf(UnsupportedOperationException.class)
      .hasMessage("A measure on metric 'int_metric_key' already exists on component 'fileKey'");
  }

  @Test
  public void get_issues() {
    DefaultIssue issue = new DefaultIssue()
      .setKey("KEY")
      .setRuleKey(RuleKey.of("xoo", "S01"))
      .setSeverity("MAJOR")
      .setStatus("CLOSED")
      .setResolution("FIXED")
      .setEffort(Duration.create(10L));

    MeasureComputerContextImpl underTest = newContext(PROJECT_REF, Arrays.asList(issue));

    assertThat(underTest.getIssues()).hasSize(1);
    org.sonar.api.ce.measure.Issue result = underTest.getIssues().get(0);
    assertThat(result.key()).isEqualTo("KEY");
    assertThat(result.ruleKey()).isEqualTo(RuleKey.of("xoo", "S01"));
    assertThat(result.severity()).isEqualTo("MAJOR");
    assertThat(result.status()).isEqualTo("CLOSED");
    assertThat(result.resolution()).isEqualTo("FIXED");
    assertThat(result.effort()).isEqualTo(Duration.create(10L));
  }

  private MeasureComputerContextImpl newContext(int componentRef) {
    return newContext(componentRef, NCLOC_KEY, COMMENT_LINES_KEY, Collections.emptyList());
  }

  private MeasureComputerContextImpl newContext(int componentRef, List<DefaultIssue> issues) {
    return newContext(componentRef, NCLOC_KEY, COMMENT_LINES_KEY, issues);
  }

  private MeasureComputerContextImpl newContext(int componentRef, String inputMetric, String outputMetric) {
    return newContext(componentRef, inputMetric, outputMetric, Collections.emptyList());
  }

  private MeasureComputerContextImpl newContext(int componentRef, String inputMetric, String outputMetric, List<DefaultIssue> issues) {
    componentIssuesRepository.setIssues(componentRef, issues);

    MeasureComputer.MeasureComputerDefinition definition = new MeasureComputerDefinitionImpl.BuilderImpl()
      .setInputMetrics(inputMetric)
      .setOutputMetrics(new String[] {outputMetric})
      .build();

    MeasureComputerContextImpl context = new MeasureComputerContextImpl(treeRootHolder.getComponentByRef(componentRef),
      settingsRepository, measureRepository, metricRepository, componentIssuesRepository);
    context.setDefinition(definition);
    return context;
  }
}
